Advertisements
Advertisements
Question
You have a choice of three metals A, B, and C, of specific heat capacities 900 Jkg-1 °C-1, 380 Jkg-1 °C-1 and 460 Jkg-1 °C-1 respectively, to make a calorimeter. Which material will you select? Justify your answer.
Advertisements
Solution
Metal B with specific heat capacity 380 Jkg-1°C-1 should be selected to make a calorimeter. By selecting this metal, the heat capacity of the calorimeter will be reduced and the amount of heat energy consumed by it from its contents to acquire their final temperature will also be negligible.
APPEARS IN
RELATED QUESTIONS
It is generally cold after a hail-storm then during and before the hail storm. Give reason.
A calorimeter has mass 100 g and specific heat 0.1 kcal/ kg °C. It contains 250 gm of liquid at 30°C having specific heat of 0.4 kcal/kg °C. If we drop a piece of ice of mass 10 g at 0°C, What will be the temperature of the mixture?
Define heat capacity.
Water boils at 120 °C in a pressure cooker. Explain the reason.
State the condition for the flow of heat energy from one body to another.
Explain, Why is it advisabile to pour cold water over burns, caused on human body, by hot solids?
For a gas `"R"/"C"_"v" = 0.4,` where 'R' is the universal gas constant and 'Cv' is molar specific heat at constant volume. The gas is made up of molecules which are ______.
Calculate the amount of heat energy required to raise the temperature of 200 g of copper from 20°C to 70°C. Specific heat capacity of copper = 390 J kg-1 K-1.
