Question

Which of the following statements is correct?

• A. The triple point of water is 253.16 K.
• B. Burns from steam are less severe than those from boiling water.
• C. Ethyl alcohol expands less than mercury for the same rise in temperature.
• D. When fully inflated balloon is immersed in cold water, it will contract.

Answer 1

Answer: (D)

When fully inflated balloon is immersed in cold water, it will contract.

Answer 2

The triple point of water is $273.16K.$

Hence, options (1) is an incorrect statement. Burns from steam are more serious than those from boiling water.

Hence, options (2) is an incorrect statement.

The coefficient of volume expansion of mercury and ethyl alcohol are $18.2 \times 10^{- 5}K^{- 1}$and $110 \times 10^{- 5}K^{- 1}$

Respectively

Since coefficient of volume expansion fro ethyl alcohol is more than mercury therefore, ethyl alcohol expands more than mercury for the same rise in temperature. Hence, option (3) is an incorrect statement.

When fully inflated balloon is immersed in cold water it would start shrinking due to contractions of the air inside.

Hence, option (4) is a correct statement.