
16. What is the specific heat capacity of a substance if 24100 J are needed to...
The table lists the specific heat capacities of select substances. Substance Specific heat capacity (J/g °C) lead 0.128 silver 0.235 copper 0.385 iron 0.449 aluminum 0.903 water 4.184 An unknown substance has a mass of 13.3 g. The temperature of the substance increases by 16.7 °C when 52.2 J of heat is added to the substance. What is the most likely identity of the substance? O lead O aluminum iron O copper water O silver
What is the heat capacity of a 20.2-kg block of ice? The specific heat capacity of ice is 2.10 kJ/kg K. kJ/K It takes 880 J to raise the temperature of 350 g of lead from 0°C to 20.0°C. What is the specific heat of lead? kJ/(kg K) A heating coil inside an electric kettle delivers 3.20 kW of electric power to the water in the kettle. How long will it take to raise the temperature of 0.390 kg of...
The specific heat capacity of solid copper metal is 0.385 J/gK. How many joules of heat are needed to raise the temperature of a 2.12-kg block of copper from 25.0°C to 88.0°C?
Question 4 of 8 > Substance lead Specific heat capacity (J/g °C) 0.128 0.235 0.385 silver copper iron 0.449 aluminum 0.903 4.184 water An unknown substance has a mass of 18.9 g. The temperature of the substance increases by 18.3 °C when 81.3 J of heat is added to the substance. What is the most likely identity of the substance? O aluminum silver O water O copper
Consider the following data for an unknown substance X: AHvap = 21.00 kJ/mol Specific heat capacity of liquid = 2.40 J/g. °C Boiling point = 70.0°C Molar mass=92.00 g/mol When the temperature of 1.000 mole of X(g) is lowered from 94.0°C to form X(1) at 46.0°C, 29.97 kJ of heat is released. Calculate the specific heat capacity of X(9). Specific heat capacity = J/g. °C Submit Answer Try Another Version 5 item attempts remaining
You heat up a substance with larger specific heat capacity. Compared with a substance with a lower specific heat capacity, will its temperature rise
Calculating specific heat capacity A constant-pressure calorimeter is often used to find the specific heat capacity of a substance if it is not known. A known mass of the substance can be heated and added to water of known mass and initial temperature. Since the specific heat capacity of water is known ( C s,water =4.184J/(g⋅ ∘ C)) , the amount of heat transferred to the water can be calculated by measuring the final temperature of the mixture at thermal...
What is the heat capacity, in J/g∙°C, of an unknown metal if 100. g of the substance requires 250. J of heat to increase its temperature from 25.0 °C to 35.3 °C? Enter your answer to the thousandths place.
A chemist carefully measures the amount of heat needed to raise the temperature of a 229.0 g sample of a pure substance from -2.8 °C to 15.1 °C. The experiment shows that 570. J of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. J.g?:K-1 x | ?
What is the specific heat capacity of a metal if it requires 170.0 J to change the temperature of 15.0 g of the metal from 25.00°C to 30.00°C? A) 34.0 J/g°C B) 245 J/g°C C) 2.27 J/g°C D) 0.441 J/g°C E) 11.3 J/g°C