Need help with question 3! *please answer correctly*

A student increases the temperature of a 300cm3 balloon from 40°C to 110°C.

What will the new volume of the balloon be? Round your answer to one decimal point.

(To convert Celsius to kelvin, add 273.15)

Thank you!!!

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next