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The molar specific heat capacity of a substance is the
- a)quantity of heat needed to raise the temperature of one mole by one degree Celsius or one kelvin.
- b)quantity of heat needed to raise the temperature of one gram by one degree Celsius.
- c)quantity of heat needed to raise the temperature of one kilogram by one-degree Fahrenheit.
- d)quantity of heat needed to raise the temperature of one mole by one-degree Fahrenheit.
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
The molar specific heat capacity of a substance is thea)quantity of h...
The molar specific heat capacity of a substance refers to the quantity of heat needed to raise the temperature of one mole of the substance by one degree Celsius or one Kelvin. Let's break down the answer in detail:
Explanation:
1. Molar Specific Heat Capacity:
The molar specific heat capacity is a measure of how much heat energy is required to raise the temperature of a substance per mole. It is denoted by the symbol "C" and has the unit J/mol·K (Joules per mole per Kelvin).
2. Heat Energy:
Heat energy is the energy transferred between two objects due to a temperature difference. It is measured in Joules (J).
3. Temperature:
Temperature is a measure of the average kinetic energy of the particles in a substance. It can be measured in degrees Celsius (°C) or Kelvin (K). One degree Celsius is equivalent to one Kelvin.
4. Substance and Mole:
A substance can be any material or element. A mole is a unit used in chemistry to represent a specific amount of a substance, which is equal to Avogadro's number (6.022 x 10^23) of particles.
5. Specific Heat Capacity:
Specific heat capacity is the amount of heat energy required to raise the temperature of a substance by one degree Celsius or one Kelvin per unit mass. It is denoted by the symbol "c" and has the unit J/g·K (Joules per gram per Kelvin).
Conclusion:
The molar specific heat capacity is specifically related to the amount of substance (moles) rather than the mass. It measures the heat energy required to raise the temperature of one mole of a substance by one degree Celsius or one Kelvin. Therefore, the correct answer is option 'A' - the quantity of heat needed to raise the temperature of one mole by one degree Celsius or one Kelvin.
Explanation:
1. Molar Specific Heat Capacity:
The molar specific heat capacity is a measure of how much heat energy is required to raise the temperature of a substance per mole. It is denoted by the symbol "C" and has the unit J/mol·K (Joules per mole per Kelvin).
2. Heat Energy:
Heat energy is the energy transferred between two objects due to a temperature difference. It is measured in Joules (J).
3. Temperature:
Temperature is a measure of the average kinetic energy of the particles in a substance. It can be measured in degrees Celsius (°C) or Kelvin (K). One degree Celsius is equivalent to one Kelvin.
4. Substance and Mole:
A substance can be any material or element. A mole is a unit used in chemistry to represent a specific amount of a substance, which is equal to Avogadro's number (6.022 x 10^23) of particles.
5. Specific Heat Capacity:
Specific heat capacity is the amount of heat energy required to raise the temperature of a substance by one degree Celsius or one Kelvin per unit mass. It is denoted by the symbol "c" and has the unit J/g·K (Joules per gram per Kelvin).
Conclusion:
The molar specific heat capacity is specifically related to the amount of substance (moles) rather than the mass. It measures the heat energy required to raise the temperature of one mole of a substance by one degree Celsius or one Kelvin. Therefore, the correct answer is option 'A' - the quantity of heat needed to raise the temperature of one mole by one degree Celsius or one Kelvin.
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The molar specific heat capacity of a substance is thea)quantity of h...
Molar specific heat capacity can be defined as the amount of heat energy required to raise the temperature of 1 mole of a substance by 1o C.
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The molar specific heat capacity of a substance is thea)quantity of heat needed to raise the temperature of one mole by one degree Celsius or one kelvin.b)quantity of heat needed to raise the temperature of one gram by one degree Celsius.c)quantity of heat needed to raise the temperature of one kilogram by one-degree Fahrenheit.d)quantity of heat needed to raise the temperature of one mole by one-degree Fahrenheit.Correct answer is option 'A'. Can you explain this answer?
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