Asample of nitrogen gas is in a sealed container with a constant volume. heat is added to the gas. the pressure

Explanation:

According to the ideal gas equation, PV = nRT.

As, volume is kept constant then relationship between pressure and temperature is directly related.

That is, pressure is directly proportional to temperature.

As we are adding heat to the gas and it means that we are increasing the temperature. Hence, there will also be increase in pressure.

Thus, we can conclude that a sample of nitrogen gas is in a sealed container with a constant volume. Heat is added to the gas. The pressure increases.

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g