Agas is sealed in a bottle at 25°c and 1.50 atm pressure. how must the storage conditions be changed to bring the gas to standard temperature and pressure (stp)? a. increase the temperature by 25°c and decrease the pressure by 0.514 atm. b. keep the temperature the same and increase the pressure by 98.5 atm. c. decrease the temperature by 25°c and decrease the pressure by 0.500 atm.

The correct option is (C).

Explanation:

At STP, condition the the value of pressure is taken to be 1 atm.

At STP, condition the the value of Temperature is taken to be 0° C that is 273 K.

So, in order to keep the gas sealed under the bottle at STP, Temperature should decreases by the 25°C and pressure should decreased by 0.500 atm.

Temperature to be kept at=  25°C - 25°C = 0°C

Pressure to be kept at =1.50 atm - 0.500 atm =1.000 atm

Hence, the correct option is (C).

The answer is C.

Explanation:

11 players on a field that has a maximum of 11 players

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.