5. Solid ammonium chloride is added to water in a beaker and dissolves. The beaker becomes cold to the touch. a) Make an appropriate choice of system and surroundings and describe it unambiguously. b) Explain why you chose the system and surroundings you did.

Q: What is specific heat ? O The study of heat changes that accompany chemical reactions and phase…

A:

Q: A student is investigating the boiling and freezing point of a liquid, He observes

A: According to the question -   Given -   1) Upon attaining the boiling point, the liquid Begins to…

Q: Which of the following cannot leave or enter a closed system: heat, work, or matter?

A: Closed system  that exchange energy and not the matter with surrounding

Q: 10. How is the energy released from a system related to the energy absorbed by the surroundings?…

A: In any Physical or chemical reaction all energy released from the system is completely absorbed by…

Q: The sum of the heats of fusion and vaporization of that substance at the same temperature. A. Heat…

A: Heat is a form of energy which can be transferred between any substances or systems which are…

Q: OH H*, heat

A:

Q: expior ehais! about your favorite summertime material. (A) What is the material made out of (i.e.,…

A: Cotton fiber is one of the highly acclaimed natural fibers under the genus of Gossypium made up of…

Q: Solid ammonium chloride is added to water in beaker and dissolves. The beaker becomes cold to the…

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

Q: 12. Which term is a measurement of heat? O Cold O Hot Temperature O warm

A: Measurement of Heat : The other form of Heat is Cold ,Hot , warm .

Q: kJ are required to melt a 27.2 g sample of solid chromium, Cr, at its normal melting point.

A: When the substance changes solid its state from solid state to liquid state is known as enthalpy of…

Q: A hot cup of tea placed near an open window to cool. Which of the following statements best…

A: Given: Hot cup of tea placed near an open window to cool.

Q: A sample of water absorbs 3.00 × 103 J of heat energy and its temperature rises from 20.0 oC to 31.2…

A: The temperature change of water is determined as given below,

Q: A 44 gg piece of ice at 0.0 ∘C∘C is added to a sample of water at 8.0 ∘C∘C. All of the ice melts and…

A: Given: Mass of ice = 44 g. Initial temperature of ice = 0.0 oC All the ice melts. And the final…

Q: What is specific heat capacity? A. The energy needed to change the temperature of a substance B. The…

A: specific heat capacity is defined as the amount of heat required to raise the temperature of a unit…

Q: Fill in the blank by the name of the definition: Heat of __________ is the quantity of heat…

A: Heat : Heat is the mode of transfer of energy from one system to another. It is due to the…

Q: How do heat and work affect the system

A: Heat and work are two unique methods of moving energy starting with one system then onto the next.…

Q: 1.219 Joules converted to cal

A: We know, 4.184 Joule = 1 Cal Or. 1 Joule = (1/4.184) Cal = 0.239 Cal

Q: Using your new knowledge about gas temperature and pressure, why does a closed, empty soda bottle…

A: When a closed, empty soda bottle is left out in a cold car, the temperature of the air inside the…

Q: 1. A quart of boiling water will cause a more severe burn if it's spilled on you than just a drop of…

A:

Q: A system that cannot exchange energy or matter with its surroundings is what type of system?

A: Thermodynamic systems are of three types: Open system- These types of systems can exchange heat and…

Q: 1. Which of the following accurately describes the conditions of an isolated system? a. Both energy…

A: The reaction is which heat is added is called as endothermic reaction.  The reaction in which heat…

Q: 2. As energy is added to a substance, the temperature remains constant. How may the substance be…

A: When the energy is added to the substance, the kinetic energy of the molecules in creases and they…

Q: A 10.7 g sample of aluminum at 85.3°C is added to 117 mL of water initially at 14.6°C. Assuming no…

A: Given that a 10.7 g sample of aluminium at 85.3°C is added to 117 mL of water which is initially at…

Q: 1.Can the states of matter change from one form to another (ex solid to liquid)? Yes or No? How?…

A: Answer: Matter exists in three physical states: 1. Solid state 2. Liquid state 3. Gaseous state

Q: Is a phase change a chemical change? Why or why not?

A: In chemical changes, the new composition of elements is formed.

Q: 5. A 500.0-g iron bar at 212°C is placed in 2.0 L of water at 24°C. What will be the change in…

A: Here, we need to answer the 5th Question which allows us to calculate the change in temperature of…

Q: Sample 1 Food coloring dye spreads slowly in a sample of water Sample 2 Food coloring dye spreads…

A: Rate of diffusion of dye in water is directly proportional to temperature. Higher the temperature,…

Q: HO H', Heat

A:

Q: difference between heat and temperature

A: The SI unit of heat is J and the SI unit of temperature is K

Q: A hot cup of tea placed near an open window to cool. Which of the following statements best…

A: The given statement is : A hot cup of tea placed near an open window to cool.

Q: 4 Is a phase change a chemical change? Why or why not?

A: Ans) Phase changes are physical changes that take place when matter changes energy states, but…

Q: Ho H, Heat

A: It is elimination reaction.  Major product will take according to saytzeff rule.

Q: 2. Heat transfer occurs: A. In many directions B. Only from cold substances to warmer substances C.…

A: Heat is the transfer of thermal energy between substances. Thermal energy is the kinetic energy of…

Q: Which of the following accurately describes the conditions of an isolated system? a. Both energy and…

A: Isolated system, as the name suggests, is something where no matter and no energy can be…

Q: 1. 50.0 g of iron (0.449 J/g°C) at 225 °C and 50 g of gold (0.128 J/g*C) at 25 °C are brought into…

A:

Q: How many grams of water can be heated from 16.0 °C to 95 °C using 125 kJ?

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: How much heat is required to change 32.5 grams of liquid water into steam, from room temperature (25…

A:

Q: )Which of the following cannot leave or enter a closed system: heat, work, or matter? Which cannot…

A: The system consists of those molecules which are reacting.The surroundings are everything else; the…

Q: What is specific heat of liquid water?

A: Specific heat: The amount of heat energy required to raise 1 g of substance by one degree Celsius.

Q: 1. Will dumping heat into a system necessarily raise the temperature of the system? Explain.

A: Heat is a form of energy that is transferred in three ways viz. conduction, convection and…

Q: Consider the following two processes as described below: 1. The old fashioned hand cranked ice cream…

A: The given two processes cab be related based on lowering of freezing point (or melting point) that…

Q: Explain the concept of specific heat and how the specific heat of water enables the human body to…

A:

Q: How much heat is required to change 32.5 grams of liquid water into steam, from 25 degrees C to 115…

A: The conversion of 32.5 grams of water to steam with the change in temperature from 25oC to 115oC.…

Q: > What type of system and process does the Water Heater that takes-in cold water and releases-out…

A: Solution Heat pump water heaters use electricity to maneuver heat from one place to a different…

Q: Water has a high specific capacity; this means that it takes a lot of energy to change the…

A: Specific heat capacity is defined as the amount of heat required to increase the temperature of 1 g…

Q: 1. Which of the following accurately describes the conditions of a closed system? a. Both energy and…

A: Please note: According to the guideline, in one session only three parts of a question can be…

Q: The force that one object exerts on another object when they rub against each other in opposite…

A: The force that one object exerts on another object when they rub against each other in opposite…

Q: Which of the following cannot leave or enter a closed system heat , work or matter? Which cannot…

A: According to first law of thermodynamics the change in internal energy is expressed as shown below: