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Deepak Rock
@deepak-rock
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Joined: Aug 6, 2021
Last seen: Sep 10, 2021
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Topics: 1742 / Replies: 303
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Topic
By how many folds the temperature of a gas would increase when the root mean square velocity of the gas molecules in a container of fixed volume is increased from 5 × 10^4 cm/s to 10 × 10^4 cm/s?
3 years ago
Forum
States of Matter
Replies: 0
Views: 288
Topic
The temperature at which oxygen molecules have the same root mean square speed as helium atoms have at 300 K is
3 years ago
Forum
States of Matter
Replies: 0
Views: 377
Topic
A mixture of Ne and Ar kept in a closed vessel at 250 K has a total K.E. = 3kJ. The total mass of Ne and Ar is 30 g. Find mass % of Ne in gaseous mixture at 250 K.
3 years ago
Forum
States of Matter
Replies: 0
Views: 304
Topic
At STP, a container has 1 mole of He, 2 mole Ne, 3 mole O2 and 4 mole N2 without changing total pressure if 2 mole of O2 is removed. The partial pressure of O2 will be decreased by:
3 years ago
Forum
States of Matter
Replies: 0
Views: 396
Topic
If 10^–4 dm^3 of water is introduced into a 1.0 dm^3 flask at 300 K, how many moles of water are in the vapour phase when equilibrium is established?
3 years ago
Forum
States of Matter
Replies: 0
Views: 215
Topic
Two vessels of volumes 16.4 L and 5 L contain two ideal gases of molecular existence at the respective temperature of 27°C and 227°C and exert 1.5 and 4.1 atmospheres respectively.
3 years ago
Forum
States of Matter
Replies: 0
Views: 346
Topic
When CO2 (g) is passed over red hot coke it partially gets reduced to CO(g). Upon passing 0.5 L of CO2 (g) over red hot coke, the total volume of the gases increased to 700 mL.
3 years ago
Forum
States of Matter
Replies: 0
Views: 281
Topic
What are the necessary conditions for autotrophic nutrition and what are its by-products?
3 years ago
Forum
Life Processes
Replies: 0
Views: 404
Topic
What is the role of saliva in the digestion of food?
3 years ago
Forum
Life Processes
Replies: 0
Views: 416
Topic
How are fat digested in our bodies? Where does this process take place?
3 years ago
Forum
Life Processes
Replies: 0
Views: 271
Topic
What would be the consequences of a deficiency of haemoglobin in our bodies?
3 years ago
Forum
Life Processes
Replies: 0
Views: 152
Topic
The breakdown of pyruvate to give carbon dioxide, water, and energy take place in
3 years ago
Forum
Life Processes
Replies: 0
Views: 113
Topic
The autotrophic mode of nutrition requires (a) carbon dioxide and water (b) chlorophyll (c) sunlight (d) all of the above
3 years ago
Forum
Life Processes
Replies: 0
Views: 109
Topic
The xylem in plants responsible for (a) transport of water (b) transport of food (c) transport of amino acids (d) transport of oxygen
3 years ago
Forum
Life Processes
Replies: 0
Views: 121
Topic
The kidneys in human beings are a part of the system for
3 years ago
Forum
Life Processes
Replies: 0
Views: 320
Topic
What are the different ways in which glucose is oxidised to provide energy in various organisms?
3 years ago
Forum
Life Processes
Replies: 0
Views: 370
Topic
How is the amount of urine produced regulated?
3 years ago
Forum
Life Processes
Replies: 0
Views: 324
Topic
What are the methods used by plants to get rid of excretory products?
3 years ago
Forum
Life Processes
Replies: 0
Views: 117
Topic
Describe the structure and functioning of nephrons.
3 years ago
Forum
Life Processes
Replies: 0
Views: 378
Topic
How is food transported in plants?
3 years ago
Forum
Life Processes
Replies: 0
Views: 293
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