HTET Exam - Level 3 Pgt - Heat

$\text{If } \alpha, \beta, \text{ and } \gamma \text{ are the coefficients of linear, area and volume expansion of the solid cube, the relation between…

The height of Niagra falls is 50 m. If J = 4.2 J/cal, the difference in temperature of water at top level and at the…

Which option is correct about the specific heat of a gas ?

How much should the temperature of a brass rod be increased so as to increase its length by 1% ? Given: for brass α =…

A copper block of mass 2.5 kg is heated in a furnace to a temperature of 500°C and then placed on a large ice block.…

Which of the following statement is not true regarding the characteristic of matter?

A copper rod and a steel rod are to have lengths $L_C$ and $L_S$, such that the difference between their lengths is the same at…

Which one of the following set phenomena would increase on raising the temperature ?

Which of the following process/ processes release heat ? (i) Condensation (ii) Vaporisation (iii) Freezing (iv) Melting Correct option is :

Which of the following are exothermic processes? (i) Reaction of water with quick lime (ii) Dilution of an acid (iii) Evaporation of water (iv) Sublimation…