Q. In S. I. units, the value of the universal gas constant is

View solution

Q. The throttling process is __________ process.

View solution

Q. The efficiency of Diesel cycle increases with increase in cut-off.

View solution

Q. The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as

View solution

Q. It is __________ to make an engine working on a Carnot cycle.

View solution

Q. The heating of a gas at constant pressure is governed by

View solution

Q. Reversed Joule cycle is known as

View solution

Q. One kg of sulphur requires 1 kg of oxygen for complete combustion and produces 2 kg of sulphur dioxide.

View solution

Q. The change of entropy, when heat is absorbed by the gas, is

View solution

Q. A machine which violates the first law of thermodynamics is known as perpetual motion machine of the second kind.

View solution

Q. Both the Ericsson and Joule's cycle have two constant pressure processes.

View solution

Q. The general law for the expansion or compression of gases, is

View solution

Q. The value of one bar (in S. I. units) is equal to

View solution

Q. Petrol is distilled at

View solution

Q. If the carbon content in the bituminous coal is 78 to 81%, it is said to be coking bituminous coal.

View solution

Q. The efficiency of the Carnot cycle is (where T1 and T2 = Highest and lowest temperature during the cycle)

View solution

Q. The mass of excess air supplied is equal to

View solution

Q. The atomic mass of sulphur is

View solution

Q. A path 1-2-3 is given. A system absorbs 100 kJ as heat and does 60 kJ of work while along the path 1-4-3, it does 20 kJ of work. The heat absorbed during the cycle 1-4-3 is

View solution

Q. The atomic mass of an element is the number of times the atom of that element is heavier than the hydrogen atom.

View solution