Silver pellets with a mass of 1.0 g and a temperature of 81 ∘C are added...

Question

Question

Silver pellets with a mass of 1.0 g and a temperature of 81 ∘C are added to 260 g of water at 18 ∘C.

A.) How many pellets must be added to increase the equilibrium temperature of the system to 30 ∘C? Assume no heat is exchanged with the surroundings.

B.) Find the number of copper pellets that are required.

science physics

Answer 1

Answer #1

Heat gained by silver + Heat gained by water = 0 (Heat is lost by the silver and heat gained by the water)

ms Gui (it-ha) (M )(38刊(30-81)

Answer 2

Similar Homework Help Questions

How many pellets must be added to increase the equilbrium temperature of the system to 26...

How many pellets must be added to increase the equilbrium temperature of the system to 26 C Assume no heat is IP Silver pellets with a mass of 0 90 g and a temperature of 86 C are added to 300 g of water at 18"C You may want to review (Pages 559-562) Express your answer using two significant figures
The specific heat c is the amount of heat necessary to change the temperature of 1.00...

The specific heat c is the amount of heat necessary to change the temperature of 1.00 kg of mass by 1.00°C. The specific heat c is a property of the substance; its Sl unit is J/(kg · K) or J/(kg.°C). Recall that the temperature change (AT) is the same in units of kelvin and degrees Celsius. water silver copper cup Case 1: A 0.780-kg silver pellet with a temperature of 85 °C is added to 0.150 kg of water in...
Case 2: A 0.780-kg silver pellet with a temperature of 85 oC is added to 0.150...

Case 2: A 0.780-kg silver pellet with a temperature of 85 oC is added to 0.150 kg of water in a copper cup of 0.66 kg. The initial temperature of the water and the copper cup is 14 oc. Assume no heat is exchanged with the surroundings. The specific heats of silver, water and copper are: 234 J/(kg oC), 4186 J/(kg oC) and 387 J/(kg oc), respectively. Find the final temprature of the system (silver+water+copper cup). Note: 1. Slver pellet...

Lead pellets, each of mass 1.80 g, are heated to 200°C. How many pellets must be...

Lead pellets, each of mass 1.80 g, are heated to 200°C. How many pellets must be added to 460 g of water that is initially at 20.0°C to make the equilibrium temperature 25.0°C? Neglect any energy transfer to or from the container. _______ pellets
8- Lead pellets, each of mass 1.40 g, are heated to 200°C. How many pellets must...

8- Lead pellets, each of mass 1.40 g, are heated to 200°C. How many pellets must be added to 511 g of water that is initially at 20.0°C to make the equilibrium temperature 25.0°C?Neglect any energy transfer to or from the container. 9-A student drops two metallic objects into a 120-g steel container holding 150 g of water at 25°C. One object is a 164-g cube of copper that is initially at 87°C, and the other is a chunk of...
Lead pellets, each of mass 1.20 g, are heated to 200°C. How many pellets must be...

Lead pellets, each of mass 1.20 g, are heated to 200°C. How many pellets must be added to 460 g of water that is initially at 20.0°C to make the equilibrium temperature 25.0°C? Neglect any energy transfer to or from the container.

Lead pellets, each of mass 0.50 g, are heated to 200°C. How many pellets must be...

Lead pellets, each of mass 0.50 g, are heated to 200°C. How many pellets must be added to 480 g of water that is initially at 20.0°C to make the equilibrium temperature 25.0°C? Neglect any energy transfer to or from the container.
Not edited Temperature Change and Heat Capacity - Calorimetry- Three substances PLEASE ANSWER ALL PARTS OF THE QUESTION:...

Not edited Temperature Change and Heat Capacity - Calorimetry- Three substances PLEASE ANSWER ALL PARTS OF THE QUESTION: CASE 1,2 and 3 water copper silver cup Case 1: A 0.780-kg silver pellet with a temperature of 85 °C is added to 0.150 kg of water in a copper cup of unknown mass. The initial temperature of the water and the copper cup is 14 °C. The equilibrium temperature of the system (silver+Water+copper cup) is measured to be 27.0 °C. Assume...
Lead pellets, each of mass 1.9g, are heated to 200C. How many pellets must be added...

Lead pellets, each of mass 1.9g, are heated to 200C. How many pellets must be added to 470g of water that is initially at 20C to make the equilibrium temperature 25C? neglect any energy transfer to or from the container.

Copper (Cu) pellets with a mass of 2.74E+1 g at 9.955E+1 °C are placed in a...

Copper (Cu) pellets with a mass of 2.74E+1 g at 9.955E+1 °C are placed in a constant pressure calorimeter of negligible heat capacity containing 1.18E+2 mL of water. The temperature of the water rises from 2.16E+1 °C to 2.34E+1 °C. What is the specific heat capacity of the copper pellets?