Calculate the amount of heat required to heat 357 grams of ethylene glycol (antifreeze) from 0 °C to 110 °C. The specific heat of ethylene glycol is 2.42 J/g • K. Select one: a. 71.5 kJ b. 95.0 kJ c. 16.2 kJ d. 39.3 kJ

Q: 1. The temperature of a 15.0 g sample of a metal (specific heat 0.040 J/g.°C) is raised by 18.2°C.…

A: Using relation:  Q = m×s×∆T     -----(1) where Q is amount of heat absorbed m is mass of substance s…

Q: The specific heat of lead is 0.129 J/g C°. How many joules of heat are required to raise the…

A: Specific heat capacity of lead: 0.129J/g°CTinitial = 22°CTfinal = 37°Cmass of lead = 380g

Q: 14. Heat energy equal to 25,000 J is applied to a 1200 g brick whose specific heat is 2.45 J/g°C. a)…

A: Given that,  Amount of Heat applied to brick q = 25000 J Mass of brick m = 1200 g Specific heat…

Q: A 125-g piece of aluminum (specific heat of 0.900 J/gC) is heated to 95°C and placed into a 375-g…

A: Solution:- Mass (m) of aluminium piece = 125 g  Specific heat capacity (ca) of aluminium = 0.900…

Q: When 45 g of an alloy metal, at 25°C, is dropped into 100.0 g of water, the alloy absorbs 956 J of…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Calculate the amount of heat required to heat 357 grams of ethylene glycol (antifreeze) from 0 oC to…

A: We have to calculate the heat required to bring the temperature change.

Q: In a coffee-cup calorimeter, 148.2 g of H20 and 97.0 mL of HCl are mixed. The HCI had an initial…

A: The heat lost or gained by water is given by  Q = mCΔT  where m = mass of water  C = specific heat…

Q: 9. If a certain amount of heat is added to a 30.0 gram sample of water the temperature of the sample…

A: Heat is a form of energy.Heat energy can be transferred from one form to another form but can…

Q: Section 7: Heat 1. When ice melts, describe what happens to the energy of the air around it. 2.…

A: Heat absorption depends on heat capacity of substance.

Q: Heat is applied to 50g of water (specific heat of 4.18J/°C) at 25°C.  The temperature of the water…

A: Mass of water (m) = 50 g Specific heat of water (c) = 4.18 J/°C Initial temperature (Ti) = 25°C…

Q: 1. Write the thermochemical equation for the following reactions that occur at constant pressure:…

A: The chemical equation is aid to be the thermochemical equation which gives the information about the…

Q: When 25.0 g hydrogen gas react according to the following reaction, how many kJ of heat are released…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.