Chemistry
Correct the following statements, wherever necessary.
(a) The volume of a gas is inversely proportional to its pressure at constant temperature.
(b) Volume of a fixed mass of a gas is directly proportional to its temperature, pressure remaining constant.
(c) 0°C is equal to zero Kelvin.
(d) Standard temperature is 25°C.
(e) The boiling point of water is 273 K.
Answer
(a) The volume of a given mass of a dry gas is inversely proportional to its pressure at constant temperature.
(b) Volume of a fixed mass of a dry gas is directly proportional to its absolute temperature (Kelvin), pressure remaining constant.
(c) 0°C is equal to 273 Kelvin
(d) Standard temperature is 0°C or 273 K.
(e) The boiling point of water is 373 K.
Related Questions
Fill in the blanks:
(a) The average kinetic energy of the molecules of a gas is proportional to the ……………
(b) The temperature on the Kelvin scale at which molecular motion completely ceases is called ……………
(c) If the temperature is reduced to half, …………… would also reduce to half.
(d) The melting point of ice is …………… Kelvin.
State (i) the three variables for gas laws (ii) S.I. units of these variables.
Write the value of:
(a) Standard temperature in:
(i) °C (ii) K
(b) Standard pressure in:
(i) atm (ii) mm Hg (iii) cm Hg (iv) torr