Grade 11Thermal Physics

a carnot engine whose sink is at 90 k has an efficiency of 30%. by how much the teperature of the source be increased to have its efficiency equal to 50%, keeping sink teperature constant

raja

7 Years agoGrade 11

2 Answers

Khimraj

7 Years ago

efficiency

$\eta$ = 1 – T_sink/T_source

$\eta$ +1 = T_sink/T_source

As T_source is constant

( $\eta$ ₂ +1)/( $\eta$ ₁ +1) = T_sink2/T_sink1

1.6/1.3 = x/90

x = 110.76

%increase in teperature of the source = 20.76*100/90 = 23%

Hope it clears.....................................

Aastha Singh

7 Years ago

DEAR STUDENT ,

KINDLY REFER TO THE IMAGE BELOW

A container filled with a sample of an Idea gas at the pressure of 1.5atm. the gas is compressed isothermal ly to one fourth of its original volume. What is the new pressure of the gas?

thermal physics

1 Answer Available

Last Activity: 3 Years ago

how do we know the electric field due to an electric dipole of dipole moment P at distance r from the centre of dipole is fiven by .. where theta is angle between p amd r vector..

thermal physics

1 Answer Available

Last Activity: 4 Years ago

A A mole of helium gas initially at stp undergoes an isovolumetric process in which its pressure falls to half its initial value. The work done by gas is

thermal physics

1 Answer Available

Last Activity: 4 Years ago

5000 J of heat are added to two moles of an ideal monatomic gas, initially at a temperature of 500 K, while the gas performs 7500 J of work. What is the final temperature of the gas? step by step please

thermal physics

1 Answer Available

Last Activity: 4 Years ago

Please help me with the answer of this question related to radiation graph

thermal physics

1 Answer Available

Last Activity: 4 Years ago

View all Questions

a carnot engine whose sink is at 90 k has an efficiency of 30%. by how much the teperature of the source be increased to have its efficiency equal to 50%, keeping sink teperature constant

raja

2 Answers

Khimraj

Aastha Singh

Other Related Questions on thermal physics

A container filled with a sample of an Idea gas at the pressure of 1.5atm. the gas is compressed isothermal ly to one fourth of its original volume. What is the new pressure of the gas?

how do we know the electric field due to an electric dipole of dipole moment P at distance r from the centre of dipole is fiven by .. where theta is angle between p amd r vector..

A A mole of helium gas initially at stp undergoes an isovolumetric process in which its pressure falls to half its initial value. The work done by gas is

5000 J of heat are added to two moles of an ideal monatomic gas, initially at a temperature of 500 K, while the gas performs 7500 J of work. What is the final temperature of the gas? step by step please

Please help me with the answer of this question related to radiation graph