Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
From personal experience, describe whether these processes are endothermic or exothermic. Give a reason for each.
a. A charcoal briquette burns.
b. Ice melts.
c. Water evaporates from your skin.
d. Wood burns.
Answer:
a. Exothermic. A charcoal briquette releases heat as it burns.
b. Endothermic. Water absorbs the heat essential for evaporation from your skin, and your skin feels cooler.
c. Endothermic. Ice absorbs the essential heat from the environment to melt.
d. Exothermic. Wood releases heat as it burns.
Which of the following set of quantum number is not possible: n l m1 m2 (a) 3 2 1
What types of detergent remove oils and fats
density of gas is 2.86 ltr.the gas maz be-
An 80°C aqueous solution containing 58 wt% sodium nitrate (NaNO 3 ) is fed to a combination crystallization-settling unit operating at 25°C. The unit separates crystals from the re
which solution is formed when iodine solution ,copper sulphate and caustic soda are mixed?
what is the easy wet test of copper?
Q. why is sodium aluminates is a better coagulates then ferrous sulphates or alum? Ans. Sodium aluminates (NaAlO 2 ): It is better coagulant than FeSO 4 and alum because i
Q. Show the Hydrides of Boron and Aluminium? Boron forms a series of volatile hydrides which resemble in some respects, e.g., volatility and covalent nature, the hydrides of c
Why are they (Lanthanides and Actinides) called Inner Transition Elements?
defnition and example
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd