A large flexible balloon contains 1.5moles of a gas in a volume of 27liters. If 1.1moles of the gas are removed and the pressure and temperature do not change, what will be the new volume of the gas? Round to two significant figures.

V = 20. L

Explanation: Use Avogadro's Law to solve this problem using the formula V1 / n1 = V2 / n2, then derive for V2. The working equation will become V2 = V1 n2 / n1

V2 = 27 L ( 1.1 moles ) / 1.5 moles

= 19.8 L or 20. L

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

it is a solid

explanation: