Pressure in Liquids Notes Questions with Answers PDF Download - 43

Amount of pressure of liquid increases with

1. volume
2. base area
3. mass
4. depth

Particular temperature on which a liquid boils is known as

1. boiling point
2. condensation point
3. melting point
4. sublimation point

In a science lab, a student heats up a chemical from 10 °C to 25 °C which requires thermal energy of 30000 J. If mass of the object is 40 kg, the specific heat capacity of the chemical would be

1. 25 J kg^-1 °C^-1
2. 50 J kg^-1 °C^-1
3. 75 J kg^-1 °C^-1
4. 100 J kg^-1 °C^-1

Power is defined as

1. p = W/t, where W is work and t is time
2. p = t/W, where t is time and W is work
3. p = W/d, where W is work and d is distance
4. p = d/W, where d is distance and W is work

Evaporation takes place

1. throughout the liquid
2. only at the surface
3. from the sides only
4. at the bottom only