on 1 Nature of substance 2 Temperature of the substance 3

Last updated: 6/12/2023

on 1 Nature of substance 2 Temperature of the substance 3 Mass of the substance 4 Both 1 and 2 An aluminium sphere of mass 47 gm is at 100 C It is then transferred to 140 gm copper calorimeter containing 250 gm of water at 20 C In steady state the temperature of water rises by 3 C What is specific heat of aluminium if that of copper is 386 J kg K NCERT Pg 286 1 911 J kg 1 K 1 2 516 J kg K 1 3 312 J kg K 1 4 612 J kg K 1 10 Two ideal gas thermometers A and B use oxygen and hydrogen gas respectively Following observation were made Temperature 9 NCERT Triple point of water heat of a substance depends NCERT Pg 284 Normal melting point of sulphur Pressure thermometer A 1 25 x 105 Pa 1 797 x 105 Pa Pressure thermometer B 2 x 10 Pa 2 87 x 10 Pa What is absolute temperature of normal melting point of sulphur as read by A and B respectively 1 392 69 K 391 98 K 2 362 3 K 378 6 K 3 378 4 K 375 4 K 4 387 5 K 386 3 K 11 Boiling water is converti atmospheric pressure Th now being utilised to ch liquid state to vapour s condition specific heat of 1 Less than zero 2 Zero 3 Slightly greater than ze 4 Infinite 12 Certain amount of heat is c copper to increase its temp If same amount of heat is water then rise in its Specific heat of copper water 4200 J kg K 1 4 C 3 6 C 2 4 13 When 150 gm of ice at C 300 gm of water at 50 C in resulting temperature is L 3 34 x 105 J kg Sw 1 2 7 C