Name: Heat Effects
Uploaded: 2019-07-19
Duration: 12 min 43 s
Description: Heat is an important form of energy in life. It flows in any system, either your body or any object. It can change liquid to gas, solid to liquid, liquid to...

Question

The specific heat capacity of water is

4186 J {kg}^{- 1} {}^{\circ}C^{- 1}

and specific heat capacity of glass is

840 J {kg}^{- 1} {}^{\circ}C^{- 1}

. If a glass heated at

80 {}^{\circ}C

is kept in water at

80 {}^{\circ}C

. What will be the effect of temperature in both the cases ?

Accepted Answer

The specific heat capacity is the amount of thermal energy required by the object to increase its temperature by $1 {}^{\circ}C$ . The specific heat capacity of water is $4186 J {kg}^{- 1} {}^{\circ}C^{- 1}$ which means $4186 joules$ of heat energy is required to increase the temperature of $1 kg$ of water by $1 {}^{\circ}C$ , the amount of thermal energy can be calculated by the expression, $Q = m \times s \times t$ , where $' m'$ is the mass of the object $' s'$ is the specific heat capacity and $' t'$ is the temperature. If $1 kg$ of water is heated at $80 {}^{\circ}C$ then the effect of this temperature on the water will be the gain of $334880 J$ of thermal energy $(Q = 1 kg \times 4186 J {kg}^{- 1} {}^{\circ}C^{- 1} \times 80 {}^{\circ}C = 334880 J)$ .

The specific heat capacity of glass is $4186 J {kg}^{- 1} {}^{\circ}C^{- 1}$ , which means $840 J$ of thermal energy is required to raise the temperature of $1 kg$ of glass by $1 {}^{\circ}C$ and if it is heated at $80 {}^{\circ}C$ , then the effect of this temperature on $1 kg$ of glass will be gain of $67200 J$ of thermal energy $(Q = 1 kg \times 840 J {kg}^{- 1} {}^{\circ}C^{- 1} \times 80 {}^{\circ}C = 67200 J)$ .

The specific heat capacity of water is $4186 J {kg}^{- 1} {}^{\circ}C^{- 1}$ and specific heat capacity of glass is $840 J {kg}^{- 1} {}^{\circ}C^{- 1}$ . If a glass heated at $80 {}^{\circ}C$ is kept in water at $80 {}^{\circ}C$ . What will be the effect of temperature in both the cases ?

Important Questions on Heat and Temperature

Learn and Prepare for any exam you want !

The specific heat capacity of water is 4186 J kg-1C-1∘ and specific heat capacity of glass is 840 J kg-1C-1∘. If a glass heated at 80C∘ is kept in water at 80C∘. What will be the effect of temperature in both the cases ?

Important Questions on Heat and Temperature

Learn and Prepare for any exam you want !

The specific heat capacity of water is $4186 J {kg}^{- 1} {}^{\circ}C^{- 1}$ and specific heat capacity of glass is $840 J {kg}^{- 1} {}^{\circ}C^{- 1}$ . If a glass heated at $80 {}^{\circ}C$ is kept in water at $80 {}^{\circ}C$ . What will be the effect of temperature in both the cases ?