Which among the following types of chips is usually produced during the machining of brittle materials?

According to the Boyle's law:

Calculate the specific heat of a gas at constant volume, given that the mass of the gas is 100 kilograms, the initial temperature of the gas is 20 kelvins and the final

 temperature of the gas is 50 kelvins. The total heat supplied to the gas is 105 kilojoules.

The compression ratio of a diesel engine is:

The petrol engine works on ___________.

In which, systems, does no heat or work cross its boundary?

What is contraction?

What is combustion in a cylinder so fast that there is no change in volume called?

What is combustion of fuel in a cylinder at so slow a rate that there is no rise in cylinder pressure called?

What is the term for a value in an equation which does not change?

What is a connecting rod bearing?