Very high in the Earth’s atmosphere, the temperature canbe 700°C. Yet an animal there would freeze to death ratherthan roast. Explain.

Q: Air at 2 bar and 50°C is compressed at a constant pressure. Compression ratio; V1/v2=3 Determine the…

A: Let V1 and V2 denote the initial and final volume, P denote the pressure, T1 denote the initial…

Q: Heliox, a mixture of helium and oxygen, is sometimes given to hospital patients who have trouble…

A:

Q: During a bout with the flu an 980-kg man ran a fever of 39.0° C instead of the normal body…

A:

Q: MA 1.0-mol sample of an ideal gas is kept at 0.0°C during an expansion from 3.0 L to 10.0 L. (a) low…

A: Given value--- No. of mole = 1 . Constant Temperature = 0 degree C.  Volume V1 = 3 L. Volume V2 =…

Q: ou apply a flame to 2 L of water for a certain time and its temperature rises by 2°C. If you apply…

A:

Q: Should a modern kitchen be air-conditioned? Will this  create cold food(which is supposed to be…

A: Yes, a modern kitchen can be air-condtioned. If the kitchen is an open one then installing an air…

Q: **63. When perspiration on the human body absorbs heat, some of the perspiration turns into water…

A: Given data: The latent heat of vaporization at body temperature is L=2.42x106 J/kg.     The…

Q: Following vigorous exercise, the body temperature of a 60.0 kg person is 39.1°C. At what rate in…

A:

Q: A 4.00 kg block of ice at 0.00 C falls into the ocean and melts. The average temperature of the…

A: The  change in entropy of the world is 60 J/K

Q: You are looking to purchase a small piece of land in Hong Kong. The price is “only” $60,000 per…

A: Here, the final length can be given as Substituting the values gives

Q: How much mass (in grams) of aluminum initially at 150 °C must be added to 400 g of water initially…

A: The mass of the water,

Q: beverage cooler is in the shape of a cube, 42 cm on each inside edge. Its 3.0-cm thick wall are made…

A:

Q: Q 11:- If the distance between each atom and another in a molecule of ammonia gas (NH3) is constant,…

A: Distance between each atom and another molecule of NH3 is constant

Q: Air-conditioning units contain no water whatever, yet it is common to see water dripping from them…

A: Given:  air conditioning unit

Q: 7. A concrete highway is built of slabs 15.0 m long (at 19 °C). How wide should the expansion cracks…

A:

Q: Nuclear fusion, the energy source of the Sun, hydrogen bombs, and fusion reactors, occurs much more…

A: Given: The kinetic energy of the atoms = 6.40 x 10-14 J

Q: It is difficult to extinguish a fire on a crude oil tanker, because each liter of crude oil releases…

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

Q: Q 11:- If the distance between each atom and another in a molecule of ammonia gas (NH3) is constant,…

A: Distance between each atom and another in a ammonia molecule is constant

Q: It is difficult to extinguish a fire on a crude oil tanker, because each liter of crude oil releases…

A:

Q: 10. Show that the change in density Ap with change in temperature AT is given by Ap = - BPAT where…

A: We know that, Density (ρ)= mass(m) / volume (v) ρ= m/V Differentiating both sides with respect to V…

Q: A tungsten sphere ( e=0.35) of radius 22cm is at temperature of 25°C . i).  If the sphere is…

A:

Q: The New River Gorge bridge in West Virginia is a steel arch bridge 518 m in length. How much does…

A: Thermal expansion is the increase in the volume of a material with the rise in temperature. It is…

Q: The heat supplied to a substance during its change of state, does not cause any rise in temperature?…

A: The heat energy supplied to the substance during its change of state does not occur any rise in…

Q: 2. A concrete highway is built of slabs 12.0 m long (at 18 °C). How wide should the expansion cracks…

A: The initial length of the slabs, L0=12.0 m   The change in temperature, ∆T=50°C-27°C=23°C   The…

Q: 23:0 Saturatad uater vapour at 60i has its pressure decrease to increase the volume by 10 %% Keeping…

A:

Q: A 5000 kg African elephant has a resting metabolic rate of 2500 W. On a hot day, the elephant’s…

A: The heat energy required to evaporate water is ∆Q=mwaterLv elephants metabolic power is used to…

Q: Question 18: A metal object which is at temperature T is kept in a completely evacuated chanber that…

A: Answer: The value of α = 4

Q: Soda from a mS = 12 oz can at temperature TS = 20.5°C is poured in its entirety into a glass…

A: A. The mass of the soda in kg is

Q: The temperature of the Sun’s interior is about 107 degrees. Does it matter whether this is degrees…

A:

Q: Question s Aring hole 2.22 cm in diameter at temprature 19 0C is cut in a sheet of copper (a = 17 x…

A:

Q: Ti, 295.7K Tp=f (Ti,, Tig,V 11 Tiz 316.9K Solve for Tf. 100mL 50 ML Vz we have a foam cup uWth 100mL…

A:

Q: Oxygen condenses into a liquid at approximately 90 K. What temperature, in degrees Fahrenheit, does…

A:

Q: 10) A steel bridge is 1000 m long at -20°C in winter. What is the change in length when the…

A:

Q: Which substance can cause a more sever burn to exposed (bare) tissue/skin, 100 °C steam or 100 °C…

A: 100 °C steam causes a more severe burn to exposed (bare) tissue/skin.

Q: The latent heat of vaporization of H,O at body temperature (37.0 °C) is 2.42 × 10ʻ J/kg. To cool the…

A: The jogger’s mass is, The latent heat of vaporization of water at 37 degrees Celsius is, The…

Q: ou read in a popular diet blog that the author claims you can lose up to half a pound of body fat…

A:

Q: Though Babatunde's family take oats for breakfast, her mum decides that today they would take tea.…

A: Given The mass of the aluminum cup is mal=120 g=120×10-3 kg=0.120 kg. The mass of tea is mtea=0.30…

Q: 9. 0.5 kg of hot water at 96 degree Ceisius is poured into a 0.18 kg glass bowl initially at 25…

A:

Q: When you stand on ice with skates, the blades on the bottom have a low surface area, and so they…

A: The phase diagram for H2O has a negative fusion curve. In other words, the change in pressure is…

Q: An automobile fuel tank is filled to the brim with 45.0 L of gasoline at 10.0oC. Afterward, the car…

A: Given that:- V=45LT1=100CT2=330Cα=9.5×10-4/0C∆V=?

Q: By the end of a hot summer day, the temperature in the city reached 33oC, while in the countryside…

A: Breeze blows from regoins which have high pressure to regions which have low pressure.

Q: When a hot object warms a cooler object, does temperature flow between them? Are the temperature…

A:

Q: The New River Gorge bridge in West Virginia is a 518-m-long steel arch. How much will its length…

A:

Q: U.S. penny has a diameter of 1.9000 cm at 20.0°C. The coin is made of a metal alloy(mostly zinc) for…

A:

Q: How many kilograms of water is needed to raise its temperature by 25C when energy expense is…

A: Given:  Temperature raise (ΔT) = 25 °C Heat Energy (Q) = 3.9 × 104 J Unknown: Mass of water (m) =?

Q: Iced tea is made by adding ice to 500 g of hot tea (mostly water), initially at 80°C. How many grams…

A: Given data: Mass of water (m) = 500 g Initial temperature of water (T) = 80°C Final temperature (Tf)…

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.