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Suluh nyimpen énérgi dina struktur kimiana. Mun struktur kimia suluhna robah, mangka bakal ngaleupaskeun [[énérgi kimia]]. Énérgi anu dikandung dina suluh téh bisa digambarkeun dina rupa-rupa bentuk, misalna [[ajén suluh]] (''fuel value'') nu dipaké pikeun ngukur [[énérgi poténsial]] suluh.
 
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Sakabéh bentuk [[kahirupan nu dasarna karbon]]—ti [[mikroorganisme]] nepi ka [[sato|sasatoan]] jeung [[manusa]]—gumantung ka sarta migunakeun suluh salaku sumber énérgina. Awakna boga mékanisme alami nu katelah ''[[métabolisme]]'' pikeun ngarobah énérgi tina [[pangan|dahareun]]. Malah, manusa mah motékar, ngembangkeun rupa-rupa téhnik pikeun ngarobah hiji bentuk énérgi ka bentuk nu séjén, ngahasilkeun énérgi nu bisa dipaké pikeun rupa-rupa tujuan nu lian ti énérgi pikeun kaperluan [[awak manusa|awakna]]. Larapan énérgi nu dileupaskeun tina suluh téh bisa dina rupa [[panas]] pikeun [[masak]] nepi ka suluh pikeun meclengkeun [[pakarang]] jeung [[tanaga listrik|listrik]].
All [[carbon-based life]] forms—from [[microorganism]]s to [[animal]]s and [[human]]s—depend on and use fuels as their source of energy. Their bodies posess a natural mechanism called ''[[metabolism]]'' to convert energy stored in [[food]]. Additionally, humans employ a variety of techniques to convert one form of energy into another, producing usable energy for purposes that go far beyond energy needs of a [[human body]]. The application of energy released from fuels ranges from [[heat]] to [[cooking]] and from powering [[weapon]]s to [[propulsion]] and generation of [[Electric power|electricity]]. The method of conversion used for a particular type of fuel depends on the molecular structure of the fuel. For example, the most efficient method for releasing energy from [[fossil fuel]]s is by burning them in [[oxygen]]. In this process known as ''[[combustion]]'', fuel reacts with [[oxygen]] and releases energy as [[heat]]. Humans have also mastered to extract energy from an [[atom]] by subjecting [[Fissile| fissile material]]s to [[nuclear reaction]].-->
 
Cara ngarobah rupa-rupa suluh téh gumantung kana [[struktur molekul]] suluhna. Pikeun conto, cara paling éfisién pikeun ngaleupaskeun énérgi tina [[suluh fosil]] nyaéta ku cara diduruk dina [[oksigén]]. Dina prosés ieu, aya réaksi suluh jeung oksigén sahingga ngahasilkeun énérgi panas. Manusa ogé bisa ngékstrak énérgi tina [[atom]] ku jalan ngolah [[Fisil|bahan fisil]] dina [[réaksi nuklir]].
 
==Rupa-rupa suluh==