It is necessary to mention the temperature at which specific gravity is calculated, because(a) Mass of the substance changes with temperature(b) Rigidity of the substance changes with temperature(c) Density of the substance changes with temperature(d) None of the mentionedThe question was asked in a job interview.My query is from Specific Gravity in division Moles, Density & Concentration of Basic Chemical Engineering

It is necessary to mention the temperature at which specific gravity i

1.	It is necessary to mention the temperature at which specific gravity is calculated, because(a) Mass of the substance changes with temperature(b) Rigidity of the substance changes with temperature(c) Density of the substance changes with temperature(d) None of the mentionedThe question was asked in a job interview.My query is from Specific Gravity in division Moles, Density & Concentration of Basic Chemical Engineering
Answer» The correct CHOICE is (c) Density of the substance changes with TEMPERATURE Explanation: Since the VOLUME of the substance changes with temperature, which means density of the substance changes with temperature, that’s why it is required to mention the temperature at which specific GRAVITY is calculated.

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