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Posted: **Wed May 18, 2022 4:59 pm**

: Question 2 Caculate The Amount Of Heat Required To Increase The Temperature Of 3 Kg Of Nitrogen From 20 C To 500 C At A 1 (33.14 KiB) Viewed 57 times

: Question 2 Caculate The Amount Of Heat Required To Increase The Temperature Of 3 Kg Of Nitrogen From 20 C To 500 C At A 2 (33.15 KiB) Viewed 57 times

Question 2 Caculate the amount of heat required to increase the temperature of 3 kg of nitrogen from -20°C to 500°C at a constant pressure? (The specific heat capacity of nitrogen is 1.039 KJ/K9 °C) (3 Marks) Question 3 In the past, railways experienced deformation due to the change in temperature during summer. Explain why How do engineers nowadays allow for expansion and contraction of railway tracks?
Question 2 Caculate the amount of heat required to increase the temperature of 3 kg of nitrogen from -20°C to 500°C at a constant pressure? (The specific heat capacity of nitrogen is 1.039 KJ/kg °C) (3 Marks) Question 3 In the past, railways experienced deformation due to the change in temperature during summer. Explain why. How do engineers nowadays allow for expansion and contraction of railway tracks?