2019

An unknown mass of gas is sealed in container M. The temperature is increased andthe pressure inside the container is measured.The experiment is now repeated using the same mass of the same gas in a differentcontainer, N.The results obtained are represented in the sketch graph below. 5.1 Determine the value of X as shown on … Read more

The melting points and boiling points of four substances (A, B, C and D) are shown inthe table below. 3.1 Define the term melting point. (2) 3.2 Explain the difference in melting points of HF and HCℓ by referring to theTYPE of intermolecular forces. (4) 3.3 Which ONE of the substances (A, B, C or … Read more