no work is done against gas.

Does work done against gravity depend on the speed of lifting a body ? Explain .

Why is the work done against gravity considered negative?

To an ideal triatomic gas 800 cal heat energy is given at constant pressure . If vibrational mode is neglected , then energy used by gas in work done against surroundings is

To an ideal triatomic gas 800 cal heat energy is given at constant pressure . If vibrational mode is neglected , then energy used by gas in work done against surroundings is

A body is moved in a direction opposite to the direction of force acting on it.State whether the work is done by the work in done against the force.

A fixed mass of gas undergoes the cycle of changes represented by PQRSP as shown in figure. In some of the changes, work is done on the gas and in others, work is done by the gas. In which pair of the changes work is done on the gas ?

For perfect rolling motion, work done against friction is zero.

For perfect rolling motion, work done against friction is zero.