1200g of a liquid at 100C is poured into a well-logged calorimeter. An electric heater rated 1KW is used to heat the liquid. The graph...

      

1200g of a liquid at 100C is poured into a well-logged calorimeter. An electric heater rated 1KW is used to heat the liquid. The graph in fig 4 below shows the variation of temperature of the liquid with time.
fig83362019244.png
Use the graph to answer the following questions:
(i) What is the boiling point of the liquid?
(ii) How much heat is given out by the heater to take the liquid to the boiling point?
(iii) Determine the specific heat capacity of the liquid stating any assumptions made.
(iv) If 50g of the liquid vapour was collected by the end of the 8th minute, determine the specific latent heat of vaporization of the liquid.

  

Answers


Kavungya
fig84362019245.png
Kavungya answered the question on June 3, 2019 at 11:46


Next: A test tube of mass 10g and uniform cross-sectional area 4cm2 is partly filled with lead shots and floats vertically in water with 5cm of...
Previous: A striker kicks a ball of mass 250g initially at rest with a force of 75N. if the foot was in contact with the ball...

View More Physics Questions and Answers | Return to Questions Index


Exams With Marking Schemes

Related Questions