(4)
(a)-( 50°× 9)/5 + 32 = 112° F
(b)- (25-32)×5/9 = - 3.89 ° C
(c)- 100° C = 100 + 273.15 = 373.15 K
(d)- 40K = 40- 273.15 = - 233.15 ° C
(5)
Heat = m c ∆T = 40× 75× 1 = 3000 Calories
4. Convert: a. 50°C to OF; b. 25°Fto OC, C. 100°C to K, d. 40K to...
Convert: 150°C to °F; 25°F to °C, -50°F to °K, 100°C to K, 400K to 'c etc. How much heat is required to increase the temperature of 40g water from 25°C to 100°C? Specific heat of water is 1 cal/g°C. How much heat is required to convert 50g ice at 0°C to water at O'C? Latent heat of fusion for ice LF80 cal/g. How much heat is required to increase the temperature of 20g iron from 25°C to 300°C? Specific...
Name Kevin Jaro 11/22/19 FRIDAY Total Points: 5x2 - 10 1. What is centripetal force? A body of mass 2 moving in a circular path with a uniform speed 45m/s. If the radius of the circle is 5m, calculate the centripetal force acting on the body 2. What do you understand by escape velocity? Calculate the escape velocity of the earth if its radius is 6370km and 8-9.81m/s. 3. Define heat. What is its unit? Convert Scal to Joules 4....
How much heat is required to change 50 g of ice at 0 oC into liquid water at 0 oC? Qmelt ice = cal 2) If 300 g of water initially at 25 oC released the amount of heat that you found in Part (1), what would its temperature be afterward? Tafter = oC 3)If you were to combine 50 g of liquid water at 0 oC with 300 g of the water at the temperature you found in Part...
2. What do you understand by escape velocity? Calculate the escape velocity of the earth if its radius is 6370km and g=9.81m/s'. 3. Define heat. What is its unit? Convert 5cal to joules 4. Convert: a. 50°C to OF; b. 25°Fto OC, C. 100°C to K, d. 40K to °C etc. rature of Ang water from 25°C to 1
How much energy is required to convert 100 g of ice at -17 °C to water at 52°C? Specific heat of Ice = 0.5 cal/g°C Heat of fusion of ice is 80 cal/g Specific heat of Water = 1.0 cal/g°C Heat of vaporization of water is 540 cal/g Specific heat of Steam = 0.5 cal/g°C Question 18 3 pts Lactated Ringer's solution, is a mixture of sodium chloride, sodium lactate, potassium chloride and calcium chloride in water. It is an...
5) Show that Q total in cal is needed to change 50 g of 0 ̊C ice to steam at 100 ̊C. (a) Show that Q in cal, Quantity of heat is needed to increase the temperature of 50 g water from 0 ̊C to 100 ̊C. The specific heat capacity for water is 1 cal/g•̊C. (b) Show that Q in cal, Heat of fusion is needed to melt 50 g of 0 ̊C ice. The heat of fusion Lffor...
a) A 430 mL sample of water was cooled from 100.0 oC to 30.0 oC . How much heat was lost? b) How many kilojoules are required to change the temperature of 26.5 g of water from 19.8 oC to 29.0 oC ? c) Calculate the final temperature when 10 mL of water at 80 oC are added to 20 mL of water at 25 oC d) A piece of metal weighing 2.00 g at a temperature of 41.0 oC was placed in a calorimeter in 19.10 mL of water...
Homework problems: Chapter 10 1. Please convert temperature 25°C to Fahrenheit scale and Kelvin scale. 2. a) How much heat is needed to warm up a 1000-g steel block from 20°C to 100 °C? (c-0.11cal/ec) b) How much heat is needed to warm up a 1000-g water from 20°C to 100 °C? (c 1.0 cal/g°C) 3. a) In a thermodynamic system, gas expends from 1 m3 to 3 m3 while keeping a constant pressure 5000 Pa. How much work is...
How much heat in calories is required to convert 20 g of ice at 0°C to steam at 100°C? The boiling point of water is 100°C. a) 14400 cal b) 12800 cal c) 1600 cal d) 10800 cal
100 g of unknown material is heated to 80 oC, and then dropped into 50 g of water at 20 oC in an insulated container. The water temperature rises within a few seconds to 38 oC. What is the final temperature of the metal? Find the specific heat of the metal. Please show work