physics

Which of the following statements about evaporation is not correct?

A. The rate of evaporation of a liquid varies with temperature B. The molecules of an evaporating liquid have an…

5 years ago

Calculate the heat energy required to change 0.1kg of ice at 0°C to water boiling at 100°C?

Calculate the heat energy required to change 0.1kg of ice at 0°C to water boiling at 100°C. (Specific heat capacity…

5 years ago

Which of the following statements is not correct about heat?

A. A sea breeze is due to convection in air B. Cotton materials are better than woolen ones for use…

5 years ago

The heat capacity of a substance is the energy?

A. required to raise the temperature of a unit mass of the substance by one degree. B. required to raise…

5 years ago

Iron at 30°C feels colder to the hand than wood at 28°C because?

A. their linear expansivities are not equal. B. the temperature of the iron is higher than that of the wood…

5 years ago

This thermometer reads 60° when the true temperature is 40°C. Calculate the value of X.

The ice point of an ungraduated mercury-in-glass thermometer is X, while its steam point is 90°. This thermometer reads 60°…

5 years ago