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Mole Concept

47. What is s...

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47. What is stp and ntp? What are there pressure and temperature?

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Q. Match the physical properties of Column-I with their values in Column-II:

Column-I	Column-II
(a) SATP	(p) 1 bar/ 1 atm
(b) Temperature in STP	(q) ${99.6}^{o} C$
(c) Pressure in NTP	(r) 273.15 K
(d) Standard boiling point of water	(s) 298.15 K

\to

Standard ambient temperature and pressure
STP

\to

Standard temperature and pressure
NTP

\to

Normal temperature and pressure

Q. Suppose NTP is used in place of STP. What will be the change in molar volume of a gas if the new condition is defined by doubling the temperature as well as pressure?

Q. Assertion :1 mole oxygen and N2 have same volume at same temperature and pressure.
Reason: 1 mole gas at NTP occupies 22.4 litre volume at STP.

Q. The velocity of sound in air at NTP is

330 m / s

. What will be its value temperature is doubled and pressure is halved?

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