If sink is at a temperature of -39⁰C and source at 0⁰C, then efficiency will be
If sink is at a temperature of -39⁰C and source at 0⁰C, then efficiency will be Options (a) 14.20% (b)…
7 years ago
Thermodynamics
If ∆Q>0 when heat flows into a system, ∆W>0 when work is done on the system
If ∆Q>0 when heat flows into a system, ∆W>0 when work is done on the system, then the increase in…
7 years ago
Which is incorrect about thermal process
Which is incorrect about thermal process Options (a) In an isobaric process ΔP=0 (b) In an isochoric process ΔW=0 (c)…
7 years ago
A tyre filled with air (27° C and 2 atm) bursts. The temperature of air is (ˠ=1.5)
A tyre filled with air (27° C and 2 atm) bursts. The temperature of air is (ˠ=1.5) Options (a) -33°…
7 years ago
When there is no heat change from surroundings in a system, then the process
When there is no heat change from surroundings in a system, then the process taking place is Options (a) isobaric…
7 years ago
Heat is supplied at constant pressure to diatomic gas. The part of this heat that goes
Heat is supplied at constant pressure to diatomic gas. The part of this heat that goes to increase its internal…
7 years ago
A carnot’s engine operates with source at 127° C and sink at 27°C
A carnot's engine operates with source at 127° C and sink at 27° C. If the source supplies 40 kJ…
7 years ago
In a water fall, the water falls from a height of 100 m. If the entire kinetic energy
In a water fall, the water falls from a height of 100 m. If the entire kinetic energy of water…
7 years ago
A lead bullet of 10 gm travelling at 300 m/s strikes against a block
A lead bullet of 10 gm travelling at 300 m/s strikes against a block of wood and comes to rest.…
7 years ago
A calorimeter contains 0.2 kg of water at 30° C. 0.1kg of water at
A calorimeter contains 0.2 kg of water at 30° C. 0.1kg of water at 60° C is added to it.…
7 years ago